EP3153717B1 - Double joining device with leveller for central panels of furniture and furnishing items - Google Patents
Double joining device with leveller for central panels of furniture and furnishing items Download PDFInfo
- Publication number
- EP3153717B1 EP3153717B1 EP16191302.5A EP16191302A EP3153717B1 EP 3153717 B1 EP3153717 B1 EP 3153717B1 EP 16191302 A EP16191302 A EP 16191302A EP 3153717 B1 EP3153717 B1 EP 3153717B1
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- EP
- European Patent Office
- Prior art keywords
- group
- hole
- shoulder
- blocking groups
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000903 blocking effect Effects 0.000 claims description 38
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
- F16B12/2054—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with engaging screw threads as securing means for limiting movement
- F16B12/2063—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with engaging screw threads as securing means for limiting movement with engaging screw threads as tightening means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B91/00—Feet for furniture in general
- A47B91/02—Adjustable feet
- A47B91/022—Adjustable feet using screw means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
- F16B12/2027—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with rotating excenters or wedges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
- F16B2012/2045—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion pin and drum securing device; drum has screw to engage the head of the pin
Definitions
- the present invention relates to a double joining device with a leveller for central panels of furniture and furnishing items.
- the document CH 676 026 discloses a furniture item with parts joined to each other by connecting fittings. Each of these comprises an oblong connector, fixed at one end in one of the parts. Its remaining portions are accommodated in the other part, a peripheral groove being formed in its end.
- a tapped tubular component contains a transverse passage accommodating the grooved part of the connector, and accommodates a clamping screw (30).
- figures 1 , 2 and 3 show a known solution of a joining device for parts of furniture and furnishing items, for example between a shoulder of a piece of furniture and a base, or in any case a shelf.
- holes must be provided in both a shoulder 11 and a base 12 of a piece of furniture, both partially shown in a connection part of the same.
- the shoulder 11 in fact, provides a horizontal blind hole 13 and the base 12 even provides a double hole 14, 15. More specifically, a horizontal hole 14 to be aligned with the hole 13 of the shoulder 11, and a vertical hole 15, formed in the upper surface of the base 12, which intersects the first hole 14, for the insertion of a blocking element, for example a grub screw 16, wherein both holes are blind.
- Said hole 13 has an axis A which is perpendicular to the shoulder 11.
- This known joining device provides for the positioning of a pin 17 with a first threaded end 18 inside an internally threaded bush 19 positioned in the hole 13 of the shoulder 11.
- the pin 17 contains, at the other end 20, a housing 21 for an end of the grub screw 16.
- a bush 22 is housed in the vertical hole 15 of the base 12, which provides a horizontal pass-through hole 23 for receiving the protruding end 20 of the pin 17 and a vertical threaded pass-through hole 24 which receives the grub screw 16.
- the grub screw 16 is then screwed, with a tool 25, according to the arrow 26, into the bush 22 so that the tip of the grub screw 16 is positioned in the housing 21 provided at the free end 20 of the pin 17.
- the blocking group is in the base, it is arranged perpendicular to the base and to the movement or approach direction and tightening between the shoulder and base. Only the pin, with which the blocking group cooperates, is provided in the thickness of the shoulder or side panel.
- Said figure 3 indicates, by means of a series of arrows, the scheme of forces at play between the shoulder 11 and base 12 of the piece of furniture and between the parts of the joining device.
- This final position also shows how the end of the hole 15 is present on the upper surface of the base 12, and is normally covered with a closing cap (not shown).
- Said hole and the corresponding cap form a visible part of the joining device.
- the general objective of the present invention is to provide a joining device between parts of furniture and furnishing items, such as a shoulder and a pair of bases positioned at opposite sides of the same, capable of solving the drawbacks mentioned above of the known art, in an extremely simple, economical and particularly functional manner.
- a further objective of the present invention is to provide a joining device between parts of furniture and furnishing items, such as a shoulder and a pair of opposing bases, which is not visible to an observer and therefore has a high aesthetical value.
- Another objective of the present invention is to provide a joining device between parts of furniture and furnishing items, such as a shoulder and a pair of opposing bases, which does not have any protrusion with respect to the upper surface of each base.
- FIGS. 4 to 7 show an embodiment of a double joining device with a leveller for central panels of parts of furniture and furnishing items according to the invention.
- the joining device must connect and join a first panel 11, for example a shoulder of a piece of furniture and a pair of second panels 12, 12', for example a base or in any case a panel or shelf, partially shown in figures 6 , 7 , 8 and 9 .
- the shoulder 11 and the bases or panels 12, 12' are generally perpendicular to each other but they may also be tilted with respect to each other.
- the two bases 12 and 12' are positioned on opposite sides with respect to the central shoulder 11 and must be firmly connected to the same.
- Each of the bases 12, 12' contains, at one of its ends, a seat S2, S2' in the form of a horizontal blind hole in which an internally threaded bush 31 is positioned, blocked, for receiving a threaded end 32 of a pin 33.
- the double joining device of the present invention essentially comprises a pair of adjacent blocking groups GB (34,41,43,44,45,46), spaced and inserted inside the seats S1, S1', formed adjacent and spaced in the shoulder 11.
- Each blocking group GB acts on a respective pin 33 connection group GC to be blocked, positioned inside a seat S2, S2' of each of the two bases 12 and 12' .
- a levelling group GL cooperating with said two blocking groups GB mentioned above, is positioned in a seat S1" or hole.
- the levelling group GL also contains a pinion-toothed crown bevel.
- a pinion 41 is rotatingly positioned in the central part of the half-shells 239, 240 in a specific hole. This hole is aligned with a further first horizontal hole 37" ( figure 7 ) formed in the shoulder 11 between the first two holes 37, 37' previously mentioned for the blocking group GB.
- the pinion 41 is engaged with a toothed crown 43, formed as head of a threaded screw 44, and can rotate in a seat 45 produced in the two coupled half-shells 239 and 240.
- the threaded screw 44 is in turn positioned in a threaded axial hole 46 and inside a supporting leg 82 on a floor P.
- the components 41,43,44,46,82 define the levelling group GL ( figures 4 and 7 ) that cooperates, according to the invention, with both the blocking group GB and with the two connection groups GC.
- the actuation of said levelling group GL is always effected by means of a tool (not shown) which, by passing through the first horizontal hole 37" formed in the shoulder 11, causes the pinion 41 to rotate and everything connected with the same as far as the leg 82.
- the leg 82 is provided with blocking means 82A and 82B against rotation (anti-rotation form), which allow the translation of the same leg 82, preventing its rotation.
- the means 82A can consist, for example, of radial protrusions which are coupled inside corresponding seats 82B of the half-shells 239, 240.
- the actuation of the two blocking groups GB and the interposed levelling group GL is effected in the same part of the casing.
- figures from 15a, 15b, 15c to 20a, 20b, 20c are examples of different holes in panels 11, 12 and 12' to be connected by means of the joining device.
- Figures 15a, 15b and 15c show how this hole consists of three circular holes or seats S1, S1', S" juxtaposed in the vertical panel or shoulder 11 for the assembly of a joining device with a leveller for a central panel or shoulder, according to the invention.
- Figures 16a, 16b and 16c show how there is only one hole or seat S2 which has a rectangular section with rounded end portions connected to the three holes 37, 37', 37", spaced as in the previous example.
- FIGS. 17a, 17b and 17c show a single hole or seat S2 with a rectangular section and rounded upper end.
- the three spaced holes 37, 37', 37" are always present.
- a single hole 37 is present, connected to a single hole or seat S2 having a rectangular form with rounded ends.
- Figures 20a, 20b and 20c show that there is a single circular hole 37 connected to a hole with a rectangular section having rounded ends.
- a particularly robust joining device is thus obtained, positioned well hidden in the shoulder and in the two opposite bases, which first of all advantageously solves the problem relating to the visibility of the device. In this way, an aesthetically pleasing appearance is created of the piece of furniture in which it is used.
- any possible caps positioned in the few holes present do not interfere with what is resting on each of the two bases of the furniture which is free of any type of hole.
- Holes produced on the shoulder are not particularly visible to an observer with respect to holes on the base as in the known art, thus obtaining a high aesthetical value.
- the half-shells are particularly simple to produce as they are almost symmetrical and identical to each other and can be obtained by moulding in only two pieces even if they contain two blocking groups and a central levelling group and are suitable for cooperating with two connection groups.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furniture Connections (AREA)
- Assembled Shelves (AREA)
Description
- The present invention relates to a double joining device with a leveller for central panels of furniture and furnishing items.
- The joining between two panels, for example between a shoulder of a piece of furniture and a base, or in any case a shelf, is currently effected in the furniture and furnishing field using various procedures and with different solutions.
- Examples of these solutions are known for example from
patents US7494297 ,US5567081 ,US6547477 andUS4408923 . - For example, the document
CH 676 026 - These known solutions have a certain complexity and in any case have a certain visibility, as they require closing elements of the seats or holes necessary for positioning the elements that effect the joining.
- Much more simply,
figures 1 ,2 and3 show a known solution of a joining device for parts of furniture and furnishing items, for example between a shoulder of a piece of furniture and a base, or in any case a shelf. - In the known solution illustrated, holes must be provided in both a
shoulder 11 and abase 12 of a piece of furniture, both partially shown in a connection part of the same. Theshoulder 11, in fact, provides a horizontalblind hole 13 and thebase 12 even provides adouble hole horizontal hole 14 to be aligned with thehole 13 of theshoulder 11, and avertical hole 15, formed in the upper surface of thebase 12, which intersects thefirst hole 14, for the insertion of a blocking element, for example agrub screw 16, wherein both holes are blind. - Said
hole 13 has an axis A which is perpendicular to theshoulder 11. - This known joining device provides for the positioning of a
pin 17 with a first threadedend 18 inside an internally threadedbush 19 positioned in thehole 13 of theshoulder 11. Thepin 17 contains, at theother end 20, ahousing 21 for an end of thegrub screw 16. - A
bush 22 is housed in thevertical hole 15 of thebase 12, which provides a horizontal pass-throughhole 23 for receiving the protrudingend 20 of thepin 17 and a vertical threaded pass-throughhole 24 which receives thegrub screw 16. - By thus positioning said elements forming the known joining device and juxtaposing the shoulder and the base according to the arrow F of
figure 1 , the coupling offigure 2 is obtained, with thepin 17 inserted in thehole 14 of thebase 12 and in thebush 22. - The
grub screw 16 is then screwed, with atool 25, according to thearrow 26, into thebush 22 so that the tip of thegrub screw 16 is positioned in thehousing 21 provided at thefree end 20 of thepin 17. - The tightening of the
grub screw 16 pushes thebase 12 against theshoulder 11 forming the final stable position shown infigure 3 . - In this known solution, the blocking group is in the base, it is arranged perpendicular to the base and to the movement or approach direction and tightening between the shoulder and base. Only the pin, with which the blocking group cooperates, is provided in the thickness of the shoulder or side panel.
- Said
figure 3 indicates, by means of a series of arrows, the scheme of forces at play between theshoulder 11 andbase 12 of the piece of furniture and between the parts of the joining device. - This final position also shows how the end of the
hole 15 is present on the upper surface of thebase 12, and is normally covered with a closing cap (not shown). - Said hole and the corresponding cap form a visible part of the joining device.
- In the first place, this part does not have an aesthetically valid appearance as, although there is the presence of the cap, it shows how the joining has been effected. Furthermore, the cap itself, which is difficult to be brought specifically in line with the surface of the base, represents an obstacle for the insertion of any object, creating a protrusion, even if minimum, with respect to the upper surface of the base.
- The presence of at least two holes in the base, moreover, intersecting each other, causes a weakening of the base itself that must sustain loads representing a possible cause of breakage.
- Furthermore, when a panel is positioned in the centre between two shelves or bases or other panels as required, the holes are formed for each part and therefore the problems previously mentioned are doubled.
- The general objective of the present invention is to provide a joining device between parts of furniture and furnishing items, such as a shoulder and a pair of bases positioned at opposite sides of the same, capable of solving the drawbacks mentioned above of the known art, in an extremely simple, economical and particularly functional manner.
- A further objective of the present invention is to provide a joining device between parts of furniture and furnishing items, such as a shoulder and a pair of opposing bases, which is not visible to an observer and therefore has a high aesthetical value.
- Another objective of the present invention is to provide a joining device between parts of furniture and furnishing items, such as a shoulder and a pair of opposing bases, which does not have any protrusion with respect to the upper surface of each base.
- The structural and functional characteristics of the present invention are defined in the claims. The advantages with respect to the known art will appear more evident from the following description, referring to the enclosed schematic drawings which show embodiment examples of the same invention. In the drawings:
-
figure 1 is a sectional view illustrating parts, spaced from each other, of a known joining device for parts of furniture and furnishing items, for example between a shoulder of a piece of furniture and a base or in any case a shelf; -
figures 2 and3 are two sectional views of the known device offigure 1 , whereinfigure 2 shows said parts juxtaposed with respect to each other and partially inserted in each other andfigure 3 shows said parts completely inserted in each other and tightened; -
figure 4 is a perspective view illustrating spaced parts of a joining device for parts of furniture and furnishing items of the invention, which can be positioned, for example, in a shoulder of a piece of furniture interposed between a pair of bases or shelves; -
figure 5 is a perspective view of the central part of the device offigure 4 with half of the casing exploded with respect to the other; -
figure 6 is a longitudinal sectional view of the device offigure 4 , outlined in correspondence with a blocking group and a connection group, inserted in a central shoulder and in two bases or shelves, showing these parts juxtaposed, completely inserted in each other and tightened; -
figure 7 is a longitudinal sectional view of the device offigure 4 , outlined in correspondence with a levelling group, inserted in a central shoulder and in two bases or shelves, showing these parts juxtaposed, completely inserted in each other and tightened; -
figures 8 and 9 are two transversal sectional views according to the lines VIII-VIII and IX-IX offigure 6 of the device of the invention offigure 4 ; -
figures 10, 11, 12, 13 and 14 show front and rear views, from above and below and to the side of the closed casing of the joining device offigures 4 and 5 ; -
figures 15a, 15b and15c to 20a ,20b and 20c are examples of different holes in panels for the assembly of a joining device with a leveller for a central shoulder according to the invention. -
Figures 4 to 14 show an embodiment of a double joining device with a leveller for central panels of parts of furniture and furnishing items according to the invention. - In order to highlight the features of the present invention,
figures 4 to 7 will be first examined, which show an embodiment of a double joining device with a leveller for central panels of parts of furniture and furnishing items according to the invention. In the example, the joining device must connect and join afirst panel 11, for example a shoulder of a piece of furniture and a pair ofsecond panels 12, 12', for example a base or in any case a panel or shelf, partially shown infigures 6 ,7 ,8 and 9 . As shown in these illustrative figures, theshoulder 11 and the bases orpanels 12, 12' are generally perpendicular to each other but they may also be tilted with respect to each other. Furthermore, the twobases 12 and 12' are positioned on opposite sides with respect to thecentral shoulder 11 and must be firmly connected to the same. - Each of the
bases 12, 12' contains, at one of its ends, a seat S2, S2' in the form of a horizontal blind hole in which an internally threadedbush 31 is positioned, blocked, for receiving a threadedend 32 of apin 33. - The
pin 33 provides, in its protruding part, ahousing 34 for the tip of a blockinggrub screw 35. - Said
pin 33 defines a connection group GC to be firmly blocked for stably interconnecting saidshoulder 11 and each of saidbases 12, 12' as better explained hereunder. - It should also be pointed out that the seats S2, S2' in the form of blind holes are formed in the two
bases 12, 12' according to the directions Y, Y' parallel to each other, adjacent but not aligned. - The
shoulder 11 provides two seats S1, S1' - each for a blocking group GB - having a substantially elongated configuration, in the form of a double vertical blind hole which, for example, forms a double "eight-shaped" circular section. Each vertical hole or seat S1, S1' intersects a first and a second horizontalblind hole figure 6 . - Both of the seats S1, S1' characteristically extend from a perimetric edge B1 towards the interior of said shoulder or
panel 11. - A pair of half-shells are housed in the pair of vertical holes or seats S1, S1', which, when assembled, form a triple cylindrical casing, with a transversal section in a "3 adjacent C" form. In particular, in the example shown, a first half-
shell 240 is provided, and a second half-shell 239, both having a very similar form. - The half-
shell 239 has, in its upper part, threeholes horizontal holes holes 172, 172' which must be aligned with the secondhorizontal holes 38, 38' of theshoulder 11. - In the example, the half-
shell 240, with a transversal section in a "3 adjacent C" form, houses twogrub screws 35 in the end parts facing outwards. Eachgrub screw 35 is caused to slide by means of a pinion-toothed crown bevel. Apinion 41 is in fact rotatingly positioned inside a hole 42 formed at least in one half-shell 240 which is aligned with the respective firsthorizontal hole 37, 37' of theshoulder 11. Thepinion 41 is engaged with atoothed crown 43, formed as head of a threadedscrew 44, and can rotate in aseat 45 formed in the two half-shells screw 44 is in turn positioned in a threadedaxial hole 46 and inside thegrub screw 35. - Said
components bases 12, 12', consisting of thepin 33, as explained hereunder. - A shaped tool (not shown) such as a hexagonal key, is suitable for being inserted in an inner complementary seat inside the
pinion 41 of a first blocking group GB passing through thefirst hole 37. For the second blocking group GB, the tool is inserted from the other first hole 37' of theshoulder 11, so as to be coupled with therespective pinion 41 causing its rotation by actuating the second blocking group GB. - In each blocking group GB, the rotation of the
pinion 41 in turn causes the rotation of thetoothed crown 43 of the head of the threadedscrew 44. The rotation of threadedscrew 44 forces the downward movement of therespective grub screw 35. - It can thus be seen how, in this embodiment, the double joining device of the present invention essentially comprises a pair of adjacent blocking groups GB (34,41,43,44,45,46), spaced and inserted inside the seats S1, S1', formed adjacent and spaced in the
shoulder 11. Each blocking group GB acts on arespective pin 33 connection group GC to be blocked, positioned inside a seat S2, S2' of each of the twobases 12 and 12' . - More generically, regardless of what is disclosed in this example, the invention provides that a pair of adjacent blocking groups GB be inserted inside two seats S1, S1', also adjacent, fully contained in the thickness of the shoulder SP or
panel 11 as preferred. The longitudinal axis x of each seat S1, S1' or hole extends perpendicularly to the approach direction d or d' and tightening of therespective base 12 or 12' to the shoulder orcentral panel 11. - According to the present invention, a levelling group GL, cooperating with said two blocking groups GB mentioned above, is positioned in a seat S1" or hole.
- In an embodiment example, said levelling group GL is positioned between said two blocking groups GB.
- The levelling group GL also contains a pinion-toothed crown bevel. A
pinion 41 is rotatingly positioned in the central part of the half-shells horizontal hole 37" (figure 7 ) formed in theshoulder 11 between the first twoholes 37, 37' previously mentioned for the blocking group GB. - The
pinion 41 is engaged with atoothed crown 43, formed as head of a threadedscrew 44, and can rotate in aseat 45 produced in the two coupled half-shells screw 44 is in turn positioned in a threadedaxial hole 46 and inside a supportingleg 82 on a floor P. - The
components figures 4 and7 ) that cooperates, according to the invention, with both the blocking group GB and with the two connection groups GC. - The actuation of said levelling group GL is always effected by means of a tool (not shown) which, by passing through the first
horizontal hole 37" formed in theshoulder 11, causes thepinion 41 to rotate and everything connected with the same as far as theleg 82. - The rotation of the threaded
screw 44 forces the downward movement of the supportingleg 82 to reach the floor P, thanks to the cooperation with the threadedaxial hole 46 inside theleg 82. - It should be pointed out that in order to effect the downward or upward movement of the leg, and not its contemporaneous rotation, specific anti-rotation means are provided.
- In the example shown, the
leg 82 is provided with blocking means 82A and 82B against rotation (anti-rotation form), which allow the translation of thesame leg 82, preventing its rotation. The means 82A can consist, for example, of radial protrusions which are coupled inside correspondingseats 82B of the half-shells - In this way, an adjustment can be effected with respect to the floor P or other supporting plane.
- In the example shown, the actuation of the two blocking groups GB and the interposed levelling group GL is effected in the same part of the casing.
- Finally, figures from 15a, 15b, 15c to 20a, 20b, 20c are examples of different holes in
panels -
Figures 15a, 15b and 15c show how this hole consists of three circular holes or seats S1, S1', S" juxtaposed in the vertical panel orshoulder 11 for the assembly of a joining device with a leveller for a central panel or shoulder, according to the invention. -
Figures 16a, 16b and 16c show how there is only one hole or seat S2 which has a rectangular section with rounded end portions connected to the threeholes - The subsequent
figures 17a, 17b and 17c show a single hole or seat S2 with a rectangular section and rounded upper end. The three spacedholes figures 19a, 19b and 19c , asingle hole 37 is present, connected to a single hole or seat S2 having a rectangular form with rounded ends. -
Figures 20a, 20b and 20c show that there is a singlecircular hole 37 connected to a hole with a rectangular section having rounded ends. - A particularly robust joining device is thus obtained, positioned well hidden in the shoulder and in the two opposite bases, which first of all advantageously solves the problem relating to the visibility of the device. In this way, an aesthetically pleasing appearance is created of the piece of furniture in which it is used.
- Furthermore, any possible caps positioned in the few holes present do not interfere with what is resting on each of the two bases of the furniture which is free of any type of hole.
- In this way, there are no obstacles on the bases for the insertion of any object, eliminating any type of protrusion, even if minimum, with respect to the upper surface of the base.
- Holes produced on the shoulder are not particularly visible to an observer with respect to holes on the base as in the known art, thus obtaining a high aesthetical value.
- Finally, the elimination of holes that intersect with each other in each base eliminates any possible weakening of the base itself that can therefore sustain high loads without the danger of a possible cause of breakage of the base.
- The half-shells are particularly simple to produce as they are almost symmetrical and identical to each other and can be obtained by moulding in only two pieces even if they contain two blocking groups and a central levelling group and are suitable for cooperating with two connection groups.
- The forms of the structure for the production of a joining device of the present invention, as also the materials and assembly modes, can naturally differ from those shown for purely illustrative and non-limiting purposes in the drawings.
- The objectives mentioned in the preamble of the description have therefore been achieved.
- The protection scope of the present invention is defined by the enclosed claims.
Claims (13)
- A double joining device suitable for a piece of furniture comprising at least three panels (11,12,12'), said panels having seats (S1,S1',S2,S2') and said joining device having a levelling group (GL) for central panels of furniture and furnishing items, in particular between a first panel (11), such as a shoulder of a piece of furniture, and a pair of second panels (12, 12'), such as a base or shelf of a piece of furniture, positioned on opposite sides of the first panel (11), which must be moved towards each other according to an approach direction (d,d') in order to bring the edge (B,B') of one panel abutted in a tightening position against a surface (S,S') of the other panel, said joining device comprising two blocking groups (GB) and one connection group (GC) assemblable on said panels (11,12), characterized in that said double joining device also comprises said levelling group (GL), said two blocking groups (GB) and also said levelling group (GL) being insertable inside a respective seat, adjacent and contained in the thickness (SP) of the panel (11) on which said blocking groups (GB) and said levelling group (GL) are applicable, said seats of the blocking groups (GB) and elling group (GL) having a longitudinal axis (X) which is perpendicular to said direction (d,d'); wherein each of said blocking groups (GB) and said levelling group (GL) can be actuated from a first hole (37,37',37") produced in said shoulder (11) and that each of said pin connection groups (GC) can be coupled with said shoulder (11) from a second hole (38,38') produced in said shoulder (11), said first and second holes (37,38; 37',38') being spaced from each other and horizontal, the double joining device further comprising a casing (239,240), wherein each blocking group (GB) comprises a pinion-toothed crown bevel (41,43), which is housed in said casing (239,240) positionable in a pair of holes or seats (S1, S1') of said shoulder (11) adjacent and spaced from said levelling group (GL), said pinion-toothed crown bevel (41,43) controlling the movement of a grub screw (35) suitable for being engaged on a respective pin group (33) of each of the two connection groups (GC); and wherein said levelling group (GL) comprises a pinion-toothed crown bevel (41,43), which is housed in said casing (239,240) positionable in said hole or seat (S1") of said shoulder (11) and which controls the movement of a supporting leg (82) suitable for being engaged on a floor (P).
- The device according to claim 1, characterized in that seats (S1,S1') are provided, that extend from a perimetric edge (B1) towards the interior of said first panel (11).
- The device according to claim 1, characterized in that the device is suitable for each of said second panels (12,12') receiving a connection group (GC) which collaborates with a respective blocking group (GB), seats (S2,S2') of said second panels (12,12') being positioned parallel to each other so as to collaborate with said blocking groups (GB) positioned adjacent in said first panel (11) .
- The device according to claim 1, characterized in that each of said blocking groups (GB) is inserted inside a respective seat (S1,S1') which is contained in the thickness (SP) of the first panel (11), a further seat (S1") being positioned between the two seats (S1, S1') which contain said blocking groups (GB) and containing said levelling group (GL), a casing (239, 240) for said two blocking groups (GB) and said levelling group (GL) being positioned in said seats (S1, S1',S1").
- The device according to claim 1, characterized in that it provides that each blocking group (GB) is positioned in a respective hole or seat (S1, S1') of said shoulder (11) and acts on a respective connection group (GC) to be blocked, situated in each of said two second panels or bases (12,12') and which extends from a hole or seat (S2, S2') produced laterally with respect to each base (12, 12').
- The device according to claim 5, characterized in that said two blocking groups (GB) and said levelling group (GL) can be actuated from a same part of a casing (239,240) containing them.
- The device according to claim 5, characterized in that said hole or seat (S1, S1') in said shoulder (11) is vertical.
- The device according to claim 5, characterized in that said hole or seat (S2, S2') in said base (12,12') is horizontal.
- The device according claim 1, characterized in that a toothed crown (43) of said bevel extends into a threaded screw (44), which in turn is positioned in a threaded hole (46) axial to and inside said grub screw (35) .
- The device according to claim 9, characterized in that said pin group comprises a pin (33) that is positioned, in a threaded end (32), in an internally threaded bush (31), positioned in said hole or seat (S2, S2') of said base (12), said pin (33) providing, in its protruding part, a housing (34) for said grub screw (35).
- The joining device according to one or more of the previous claims, characterized in that said casing comprises at least a pair of half-shells that form, when assembled, a triple casing for containing said two blocking groups (GB) and said levelling group (GL).
- The device according claim 1, characterized in that said toothed crown (43) of said bevel extends into a threaded screw (44), which in turn is positioned in a threaded hole (46) axial to and inside said supporting leg (82) .
- The device according claim 1, characterized in that said levelling group (GL) is positioned between said two blocking groups (GB).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUB2015A004264A ITUB20154264A1 (en) | 2015-10-09 | 2015-10-09 | DOUBLE JUNCTION DEVICE WITH LEVELER FOR CENTRAL FURNITURE PANELS AND FURNISHING ITEMS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3153717A1 EP3153717A1 (en) | 2017-04-12 |
EP3153717B1 true EP3153717B1 (en) | 2022-03-16 |
Family
ID=55173902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16191302.5A Active EP3153717B1 (en) | 2015-10-09 | 2016-09-29 | Double joining device with leveller for central panels of furniture and furnishing items |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3153717B1 (en) |
IT (1) | ITUB20154264A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700100673A1 (en) * | 2017-09-08 | 2019-03-08 | Leonardo Srl | JUNCTION AND / OR LEVELING SYSTEM FOR FURNITURE PARTS AND FURNITURE ARTICLES AT MINIMUM SIZE |
IT202000029750A1 (en) * | 2020-12-03 | 2022-06-03 | Ferramenta Livenza Soc A Responsabilita Limitata | JOINT DEVICE FOR FURNITURE |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8006733U1 (en) | 1980-03-12 | 1981-02-26 | Haefele Kg, 7270 Nagold | FITTING FOR CONNECTING TWO FALLING EQUIPMENT TOGETHER |
CH676026A5 (en) * | 1988-02-10 | 1990-11-30 | Ziltener Ag | Composite furniture item - has screw in tapped tubular component with transverse passage for grooved connector end |
GB2285106B (en) | 1993-12-23 | 1997-07-16 | Titus Int Ltd | Joint forming device |
AT407777B (en) * | 1999-04-26 | 2001-06-25 | Blum Gmbh Julius | CONNECTING FITTING FOR DETACHABLE CONNECTION OF TWO FURNITURE PARTS |
GB2430991B (en) | 2005-10-07 | 2008-09-10 | Titus Int Plc | Improvements in joint forming devices |
ITMI20072089A1 (en) * | 2007-10-30 | 2009-04-30 | Leonardo Srl | PERFECTED LEVELER DEVICE. |
-
2015
- 2015-10-09 IT ITUB2015A004264A patent/ITUB20154264A1/en unknown
-
2016
- 2016-09-29 EP EP16191302.5A patent/EP3153717B1/en active Active
Also Published As
Publication number | Publication date |
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EP3153717A1 (en) | 2017-04-12 |
ITUB20154264A1 (en) | 2017-04-09 |
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